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Old 06-25-2018, 01:40 PM   #1
PDXREALTOR
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Default DIY Fuel Pressure Sensor Logging Cobb Access Port

I was installing an adjustable fuel pressure regulator and really had no need for the complete fuel pressure sensor kit from Cobb so I did a bit of searching around and came up with the 'how to' and parts list to DIY it. Saved a bit of money and didn't end up with parts I had no use for.

This is for the access port and Cobb Custom Feature. Instructions for activating can be found in Cobb's fuel pressure sender install sheet towards the end.

You'll need Auto Meter parts -
#2246 (sender)
#5227 (harness)
And a TGV connector for clean install-found here

Cut the red/black wires off the Auto Meter wiring harness. Use the following hookup to the TGV as pictured below-
Black - ground
Violet - 5v Signal
Grey 5v Reference

Proceed with activating the CCF in your ATR software. I had to slow the sample rate to 120, and set smoothing to 0.2500 so I could set a good solid base pressure.

Here is the TGV plug for reference.



Complete wire harness


Sensor


Last edited by PDXREALTOR; 06-26-2018 at 01:38 AM.
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Old 07-02-2018, 09:23 PM   #2
Mnash50259
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Nice!
Just what I was looking for, do you know if the the sensor outputs are linear?
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Old 07-07-2018, 04:16 PM   #3
JarHarms
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A few alternative thoughts to add:
That bmotorsport TGV receptical connector linked is for newer Subarus like the OP's car. It will not work on older Subarus with 3way connectors. iWire and COBB (in their kits) are both Sumitomo copies. *Oh, it looks like bmotorsports now carries the correct 3way TGV connectors now. LINK

COBB's kit uses uses the Autometer #2246 100psig sender. Not that this sender is bad or anything. I just don't do Autometer. So if one would rather a non-Autometer option use AEM #30-2130-100 100psig sender. At least AEM provides specifications on their website and include the mating connector.
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Old 12-18-2018, 07:26 AM   #4
fbi
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Thanks guys! Very useful.

Any suggestions on mounting the sensor?

B
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Old 12-18-2018, 10:10 AM   #5
PDXREALTOR
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Quote:
Originally Posted by fbi View Post
Thanks guys! Very useful.

Any suggestions on mounting the sensor?

B
Wouldn't it always mount to the fuel pressure regulator? It's been a while since I looked at Cobbs kit, and honestly I forget the details of it. I just remember there was a bunch of things I didn't need.

Could one of those things be the mount you need if you don't have a fpr with a sensor port?
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Old 12-18-2018, 08:29 AM   #6
nospoolforyou
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Big Thanks PDXREALTOR and everyone else who has contributed. This combined with the FlexFuel DIY write up by gurujeff, fbi , barge et al saves well over $400. Money better spent elsewhere
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Old 12-18-2018, 10:12 AM   #7
PDXREALTOR
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Quote:
Originally Posted by nospoolforyou View Post
Big Thanks PDXREALTOR and everyone else who has contributed. This combined with the FlexFuel DIY write up by gurujeff, fbi , barge et al saves well over $400. Money better spent elsewhere
For sure. I don't think anyone can argue the huge contributions Cobb has made to the tuning community both for the little guy and the pro tuners a like, but they get a little silly with some of their parts.....
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Old 12-18-2018, 10:19 AM   #8
fbi
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Quote:
Originally Posted by PDXREALTOR View Post
For sure. I don't think anyone can argue the huge contributions Cobb has made to the tuning community both for the little guy and the pro tuners a like, but they get a little silly with some of their parts.....
Now that you mention it, I think my aftermarket fpr has fittings.
This with the ethanol DIY, huge savings and fun projects!
B
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Old 12-19-2018, 08:17 AM   #9
TheLastOpenRoad
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Great write up, I will be trying this soon.
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Old 06-24-2019, 07:55 PM   #10
peekeesh
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Thanks! Saved almost $130 going this route.
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Old 06-25-2019, 02:21 PM   #11
Netzapper
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OMG WHAT LUCK! I needed that TGV pinout for my O2 sensor! Thank you!
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Old 06-26-2019, 08:26 AM   #12
Barge
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Ballenger may be willing to make up these "adapter" harnesses. Or I could I suppose... to make people's lives easier.

Basically every standard pressure sensor uses the same connector. If you really want to go budget you can get 0-100 psi pressure sensors on ebay for like $10.

I was going to recommend just getting a honeywell sensor since that's what most of these are anyway but apparently the prices on them have gone up quit a bit and the autometer is actually not badly priced.
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